Gas-burner tip.



P. KELLER.

GAS .BURNBR TIP.

APPLICATION FILED NOV. 20, 1913.

1,095,280. 7 Patented May 5, 1914.

UNITED STATES PATENT on o PETER KELLER, OF CHICAGO, ILLINOIS, ASSIGNOR T0 J. C. F. BUYER, OF CHICAGO, ILLINOIS.

GAS-BURNER TIP.

T 0 all whom it may concern:

Be it known that 1, PETER KELLER, a c tizen of the United States, residing at the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Gas-Burner Tips, of which the following is a specification.

My invention relates to burners which are used for the consumption of gas for illuminating purposes.

The object thereof is to provide an open tip for such burners, which will insure a perfect presentation of atmospher c air to the ,illumniating gas at the polnt of egress, thereby causing a perfect mixture and combustion: in which the air which is presented to the escaping current of gas will be drawn directly to the gas outlet with the least possible resistance, and at the same time superheated, the current and pressure thereby acting as a check upon the flow of gas and at the same time causing a lateral pressure upon both sides of the flame, whereby the same is spread to give a greater illuminating body.

The principles of my invention are illustrated in the drawings, in which Figure 1 shows a vertical elevation of gas burner provided with my improved tip; Fig. 2 is a top view of the tip; Fig. 3 is a vertical section on the line 3-3 of Fig. 2; Fig. 4 is a vertical section on the line l4 of Fig. 2.

My improved tip consists of a tubular shell 1 having the walls 1, tapered at the lower extremity to fit into the pillar 2 of a gas burner in the usual manner. On the opposite sides of the upper part of the tip are formed two rounded protuberances 3 projected upwardly and spaced from each other and having substantially vertical inwardly facing walls at. The space between said walls forms an airway 5, the floor of which as shown in Fig. 4 is given a curve from end to end of similar contour in the vertical plane to those of the protuberances 3, between which it lies. The extremities of the arched airway 5 are broadened or flared as shown at 6. A slot 7 is cut centrally and transversely of the airway and the ends of the slot are extended at 8 through the walls 4:.

Specification of Letters Patent.

Application filed November 20, 1913.

Patented May 5, 1914.

Serial No. 802,029.

WVhen the flow of illuminating gas passes upwardly through the burner tube 2, it fills the shell 1 and passes through the slot 8, at which point it is ignited. A fan-shaped flame as indicated by the dotted line 9 in Fig. 4: is formed at right angles to the vertical plane of the slot and at once causes a current of air to set toward it. While a certain amount of air comes from all directions, a considerable portion of that which flows toward the flame strikes the tip at the airway and so much thereof as is embraced in the vertical space a strikes upon the floor of said airway and is carried inwardly and upwardly. It is divided by the flame into two currents which are confined between the walls 4, by which said currents are caused to impinge upon the opposite sides of the flame. This volume of air, of the entire width of the airway at its flared ends, is confined between the walls 4, and being given additional impetus by the heated surface with which it comes in contact, the currents there of are compressed against the correspondingsides of the flame with considerable force, thereby additionally flattening and spreading it to give a greater illuminating surface, and also bringing a certain amount of back pressure upon the escaping current of gas, whereby the same is impeded or held back to some extent in its flow. The further result of said action is to cause the flame to burn steadily and without noise or flicker. The checking effect upon the gas flow and shaping effect upon the flame produce a perfect combustion, a highly illuminating flame body and an economical consumption of gas.

I claim:

1. A gas burner tip consisting of a shell provided with a plurality of rounded protuberances projected upwardly from the upper end thereof and having inwardly facing walls spaced from each other; said tip being further provided with an airway formed between and by said walls, the floor of said airway being curved from end to end in a plane substantially parallel to said walls and having a transverse central slot.

2. A gas burner tip consisting of a shell provided with a plurality of rounded protuberances projected upwardly from the upper end thereof and having inwardly the ends of said airway being broadened or :faemg Walls spaced from each other; smd flared.

up belnp; further provided wlth an airway formed between and by smd Walls, the floor of 881d RHWELY being curved from end to end 121 a plane substentlally parallel to said walls and having a transverse central slot,

PETER KELLER.

WVitnesses CHAS. E. Gon'ron, A. S. PHILLIPS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

